2143650 has 48 divisors (see below), whose sum is σ = 5499648. Its totient is φ = 552000.

The previous prime is 2143627. The next prime is 2143667. The reversal of 2143650 is 563412.

It is a happy number.

It is an alternating number because its digits alternate between even and odd.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 4420 + ... + 4880.

It is an arithmetic number, because the mean of its divisors is an integer number (114576).

2^2143650 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2143650, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2749824).

2143650 is an abundant number, since it is smaller than the sum of its proper divisors (3355998).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2143650 is a wasteful number, since it uses less digits than its factorization.

2143650 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 507 (or 502 counting only the distinct ones).

The product of its (nonzero) digits is 720, while the sum is 21.

The square root of 2143650 is about 1464.1208966475. The cubic root of 2143650 is about 128.9390975061.

The spelling of 2143650 in words is "two million, one hundred forty-three thousand, six hundred fifty".